net/mlx5: E-switch, Fix missing set of split_count when forward to ovs internal port

Rules with mirror actions are split to two FTEs when the actions after the mirror
action contains pedit, vlan push/pop or ct. Forward to ovs internal port adds
implicit header rewrite (pedit) but missing trigger to do split.

Fix by setting split_count when forwarding to ovs internal port which
will trigger split in mirror rules.

Fixes: 27484f71 ("net/mlx5e: Offload tc rules that redirect to ovs internal port")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -4304,6 +4304,7 @@ int mlx5e_set_fwd_to_int_port_actions(struct mlx5e_priv *priv,
 
 	esw_attr->dest_int_port = dest_int_port;
 	esw_attr->dests[out_index].flags |= MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE;
+	esw_attr->split_count = out_index;
 
 	/* Forward to root fdb for matching against the new source vport */
 	attr->dest_chain = 0;